For remote connections, you must configure Windows DCOM settings (via dcomcnfg ) to allow the client to communicate with remote OPC servers. System Requirements
Do not install under a local admin account if you intend to run the client as a service. Create a dedicated domain or local service account (e.g., OPCClientSvc ) with and “Act as part of the operating system” privileges.
: You must log in as an Administrator to install the core system services and register COM/DCOM components.
Toward the end of the installation, the wizard will run a batch process to register ActiveX controls ( .ocx files) and DLLs. factorysoft opc client install
: Check the "Quality" column. If it says "Good," your installation and connection are successful. Troubleshooting Tip: DCOM Errors
The is a development framework that simplifies the complexity of COM/DCOM and OPC DA interfaces.
Installing FactorySoft is not as simple as running a setup.exe . If you ignore the prerequisites, the software will install, but it will fail to connect to anything. For remote connections, you must configure Windows DCOM
Right-click the FactorySoft shortcut, go to Properties > Compatibility , and check the box for Run this program as an administrator . Ensure your Windows updates are current. Conclusion
Locate the authorized installer package (typically distributed as a .zip archive or an .exe executable).
Set the (how often the client asks for new data). : You must log in as an Administrator
You likely are not installing this on a brand-new Windows 11 machine for a greenfield project. You are likely:
In modern industrial automation, ensuring seamless communication between disparate devices, controllers, and software systems is critical. serves as the standard for this interoperability, and the FactorySoft OPC Client is a robust tool designed to bridge OPC servers with client applications, facilitating efficient data exchange.
| Error Message | Likely Cause | Fix | |---------------|--------------|------| | "Class not registered (0x80040154)" | 64-bit/32-bit mismatch or missing COM registration | Reinstall as Admin. Run regsvr32 FactorySoftOPC.dll from elevated command prompt in SysWOW64 folder. | | "Access Denied (0x80070005)" | DCOM permissions not propagated | In dcomcnfg , set to include INTERACTIVE and NETWORK SERVICE . | | "OPC Server connection timeout" | Firewall blocking RPC | Add inbound rule for svchost.exe and TCP 135. Reboot. | | "Cannot browse tags – empty tree" | OPC server not exposing namespace | Connect with a different OPC client (e.g., Matrikon Explorer) to isolate whether the issue is FactorySoft or the server. |
